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laiz [17]
3 years ago
5

Answer this please. Thank you! Worth 10 points as well.

Mathematics
1 answer:
nlexa [21]3 years ago
3 0
The probability that the next 4 winners will all be 7th grade students is 3/4
You might be interested in
What is the radius and diameter of the following circle?<br> 11 cm
tresset_1 [31]
Answer:
22
Explanation:
The radius of a circle is exactly half the length of the diameter. Thus, to find the diameter when given the radius, multiply the radius's length by
2
.
2
r
=
d
2
×
11
=
d
22
=
d

Hope this helps.
8 0
3 years ago
Please help. will mark brainliest
Semmy [17]

DH = HF      

x + 1 = 3y         

y = (x + 1) ⁄ 3        


GH = HE

 3x – 4 = 5y + 1 

 y = (3x – 5) ⁄ 5 

            

 y = y 

 (x + 1) ⁄ 3 = (3x – 5) ⁄ 5 

5x + 5 = 9x – 15 

4x = 20 

 x = 5 


y = (x + 1) ⁄ 3        

y = (5 + 1) ⁄ 3       

y = 2 





4 0
3 years ago
A fair number cube with
malfutka [58]

Answer:

b=15 percentage

a=20 percentage

6 0
3 years ago
Find the equation of the line passing through the points (4,5) and (-6,15)
alex41 [277]

Answer:

y = − x + 9

Step-by-step explanation:

Plz Mark brainliest!

5 0
3 years ago
Refer to the accompanying data set of mean​ drive-through service times at dinner in seconds at two fast food restaurants. const
Anton [14]

Step-by-step explanation:

Assuming the data is as shown, restaurant X has a mean service time of 180.56, with a standard deviation of 62.6.

The standard error is SE = s/√n = 62.6/√50 = 8.85.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

180.56 ± 1.960 × 8.85

180.56 ± 17.35

(163, 198)

Restaurant Y has a mean service time of 152.96, with a standard deviation of 49.2.

The standard error is SE = s/√n = 49.2/√50 = 6.96.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

152.96 ± 1.960 × 6.96

152.96 ± 13.64

(139, 167)

4 0
3 years ago
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